I got a little overheated while walking the dog, so when I got home, and after realizing that I still hadn't eaten lunch, I had some ice cream. It sounds really unhealthy (and I rarely eat like this), but think about it. I cooled down very quickly, which made me more mobile, which means I can exercise more (even if I don't). Voila! Ice cream is healthy!
The membership to my rationalization club is free and wide open for membership.